The 12-megapixel, Nikon Coolpix S4000 ($179.95 direct) is among the least-expensive cameras on the market to offer a touch screen interface...With the NikonS4000, you need to decide whether a touch screen interface is worth sacrificing image stabilization forand we don't think it is...The focal length of the lens is 27-108mm (35mm equivalent)that means there's...